<template>
    <div class="wrapper">
        <div style="margin: 200px auto; background-color: #fff; width: 350px; padding: 20px; border-radius: 10px">
            <div style="margin: 20px 0; text-align: center; font-size: 24px"><b>注 册</b></div>
            <el-form :model="user" :rules="rules" ref="userForm">
                <el-form-item prop="username">
                    <el-input placeholder="请输入账号" size="medium" style="margin: 5px 0" prefix-icon="el-icon-user"
                              v-model="user.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input placeholder="请输入密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock"
                              show-password v-model="user.password"></el-input>
                </el-form-item>
                <el-form-item prop="confirmPassword">
                    <el-input placeholder="请确认密码" size="medium" style="margin: 5px 0" prefix-icon="el-icon-lock"
                              show-password v-model="user.confirmPassword"></el-input>
                </el-form-item>
                <el-form-item style="margin: 5px 0; text-align: right">
                    <el-button type="primary" size="small" autocomplete="off" @click="register">注册</el-button>
                    <el-button type="warning" size="small" autocomplete="off" @click="$router.replace('/login')">返回登录
                    </el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
    import qs from 'qs'

    export default {
        name: "Login",
        data() {
            var checkUsername = (rule, value, callback) => {
                if (value) {
                    this.request.get("/user/check?" + qs.stringify(this.user)).then(res => {
                        if(res.code!==200){
                            return callback(new Error(res.msg));
                        }else {
                            callback();
                        }
                    })
                }
            };
            return {
                user: {},
                rules: {
                    username: [
                        {required: true, message: '请输入用户名', trigger: 'blur'},
                        {min: 3, max: 10, message: '长度在 3 到 5 个字符', trigger: 'blur'},
                        {validator: checkUsername, trigger: 'blur'}
                    ],
                    password: [
                        {required: true, message: '请输入密码', trigger: 'blur'},
                        {min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur'}
                    ],
                    confirmPassword: [
                        {required: true, message: '请输入密码', trigger: 'blur'},
                        {min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur'}
                    ],
                }
            }
        },
        methods: {
            register() {
                this.$refs['userForm'].validate((valid) => {
                    if (valid) {  // 表单校验合法
                        if (this.user.password !== this.user.confirmPassword) {
                            this.$message.error("两次输入的密码不一致")
                            return false
                        }
                        this.request.post("/user/register", this.user).then(res => {
                            console.log(res)
                            if (res.code === 200) {
                                this.$message.success("注册成功")
                                this.user = {}
                            } else {
                                this.$message.error(res.msg + "注册失败")
                            }
                        })
                    }
                });
            },
        }
    }
</script>

<style>
    .wrapper {
        height: 100vh;
        background-image: linear-gradient(to bottom right, #FC466B, #3F5EFB);
        overflow: hidden;
    }
</style>
